鄂尔多斯盆地古隆起东侧奥陶系白云岩体地震预测技术  

The Seismic Prediction Technology of Ordovician Dolomite Body in the East of Paleo-uplift in Ordos Basin

作　　者：王媛 耳闯 何争光 李金付 夏密丽 马睿 WANG Yuan;ER Chuang;HE Zheng-guang;LI Jin-fu;XIA Mi-li;MA Rui(School of Earth Sciences and Engineering,Xi’an Shiyou University,Xi’an 710065,China;Shaanxi Key Lab of Petroleum Accumulation Geology,Xi’an 10065,China;Changqing Branch of Research Institute of Oriental Geophysical Company,Xi’an 710021,China)

机构地区：[1]西安石油大学地球科学与工程学院,西安710065 [2]陕西省油气成藏地质学重点实验室,西安710065 [3]东方地球物理公司研究院长庆分院,西安710021

出　　处：《西安文理学院学报（自然科学版）》2022年第3期121-128,共8页Journal of Xi’an University(Natural Science Edition)

基　　金：国家科技重大专项《大型油气田及煤层气开发》(项目编号:20162X05050)。

摘　　要：为了深化鄂尔多斯盆地奥陶系中深层研究,为盐下地震勘探提供基础资料和技术支持、寻找勘探有利目标,结合目前盆地勘探、开发过程中存在的主要问题,通过持续攻关研究,针对奥陶系碳酸盐研究在岩性预测方面,采用模型正演分析、地震相分析、多属性分析、岩石物理分析及叠前反演等技术手段,对下古生界马四段、马三段白云岩体开展岩性预测技术攻关,预测各目的层岩性体展布形态、落实了该区奥陶系马四-马三段白云岩体的分布、断裂展布及构造形态,为落实规模储量及风险目标提供依据.In order to deepen the research on the middle and deep oil-bearing of Ordovician in Ordos Basin,and provide basic data and technical support for subsalt seismic exploration and find favorable exploration targets,in combination with the main problems existing in the process of exploration and development of the basin,through continuous research,aiming at the re⁃search of Ordovician carbonate,by using of the technical means such as model forward analysis,seismic facies analysis,multi-attribute analysis,petrophysical analysis and prestack inversion,the problems in lithology prediction technology for dolomite bodies in Ma 4 and Ma 3 member of the lower Paleozoic are solved,and the distribution form of lithologic body in each target layer is predicted,and the distribution,fault distribution and structural form of dolomite in Ma 4-Ma 3 member of Ordovician in this area are implemented.therefore,the basis for the implementation of large-scale reserves and risk objectives is provided.

关 键 词：鄂尔多斯 古隆起东侧 下古生界 奥陶系 白云岩体 

分 类 号：P631[天文地球—地质矿产勘探]